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Liquidity (Details Narrative)	Mar. 31, 2022 USD ($)
Liquidity
Working Capital	$ 20,500,000

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- References

No definition available.

+ Details

Name:	bivi_DisclosureLiquidityAbstract
Namespace Prefix:	bivi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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No definition available.

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Name:	bivi_WorkingCapital
Namespace Prefix:	bivi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant